21 instances from 5 years 2021 - 1 instance Jan Feb Mar Apr May Jun 27 Jul Aug Sep Oct Nov Dec 2020 - 3 instances Jan Feb Mar Apr May Jun 28 Jul 20 2 Jul 20, 2020 2 instances 08:07:02 08:08:03 Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:17:25 04:17:28 04:17:48 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 09:49:42 09:53:38 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 9 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 16:17:50 16:32:39 16:38:22 16:41:20 30 Oct 3 3 Oct 3, 2016 3 instances 14:53:13 15:01:17 15:18:50 Nov Dec 29